117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
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#include "gd_mono_android.h"
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#if defined(ANDROID_ENABLED)
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#include <dlfcn.h> // dlopen, dlsym
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#include <mono/utils/mono-dl-fallback.h>
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#include "core/os/os.h"
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#include "core/ustring.h"
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#include "platform/android/thread_jandroid.h"
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#include "../utils/path_utils.h"
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#include "../utils/string_utils.h"
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namespace GDMonoAndroid {
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String app_native_lib_dir_cache;
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String determine_app_native_lib_dir() {
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JNIEnv *env = ThreadAndroid::get_env();
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jclass activityThreadClass = env->FindClass("android/app/ActivityThread");
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jmethodID currentActivityThread = env->GetStaticMethodID(activityThreadClass, "currentActivityThread", "()Landroid/app/ActivityThread;");
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jobject activityThread = env->CallStaticObjectMethod(activityThreadClass, currentActivityThread);
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jmethodID getApplication = env->GetMethodID(activityThreadClass, "getApplication", "()Landroid/app/Application;");
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jobject ctx = env->CallObjectMethod(activityThread, getApplication);
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jmethodID getApplicationInfo = env->GetMethodID(env->GetObjectClass(ctx), "getApplicationInfo", "()Landroid/content/pm/ApplicationInfo;");
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jobject applicationInfo = env->CallObjectMethod(ctx, getApplicationInfo);
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jfieldID nativeLibraryDirField = env->GetFieldID(env->GetObjectClass(applicationInfo), "nativeLibraryDir", "Ljava/lang/String;");
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jstring nativeLibraryDir = (jstring)env->GetObjectField(applicationInfo, nativeLibraryDirField);
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String result;
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const char *const nativeLibraryDir_utf8 = env->GetStringUTFChars(nativeLibraryDir, NULL);
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if (nativeLibraryDir_utf8) {
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result.parse_utf8(nativeLibraryDir_utf8);
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env->ReleaseStringUTFChars(nativeLibraryDir, nativeLibraryDir_utf8);
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}
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return result;
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}
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String get_app_native_lib_dir() {
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if (app_native_lib_dir_cache.empty())
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app_native_lib_dir_cache = determine_app_native_lib_dir();
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return app_native_lib_dir_cache;
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}
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int gd_mono_convert_dl_flags(int flags) {
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// from mono's runtime-bootstrap.c
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int lflags = flags & MONO_DL_LOCAL ? 0 : RTLD_GLOBAL;
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if (flags & MONO_DL_LAZY)
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lflags |= RTLD_LAZY;
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else
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lflags |= RTLD_NOW;
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return lflags;
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}
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void *gd_mono_android_dlopen(const char *p_name, int p_flags, char **r_err, void *p_user_data) {
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String name = String::utf8(p_name);
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if (name.ends_with(".dll.so") || name.ends_with(".exe.so")) {
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String app_native_lib_dir = get_app_native_lib_dir();
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String orig_so_name = name.get_file();
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String so_name = "lib-aot-" + orig_so_name;
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String so_path = path::join(app_native_lib_dir, so_name);
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if (!FileAccess::exists(so_path)) {
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if (OS::get_singleton()->is_stdout_verbose())
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OS::get_singleton()->print("Cannot find shared library: '%s'\n", so_path.utf8().get_data());
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return NULL;
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}
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int lflags = gd_mono_convert_dl_flags(p_flags);
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void *handle = dlopen(so_path.utf8().get_data(), lflags);
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if (!handle) {
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if (OS::get_singleton()->is_stdout_verbose())
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OS::get_singleton()->print("Failed to open shared library: '%s'. Error: '%s'\n", so_path.utf8().get_data(), dlerror());
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return NULL;
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}
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if (OS::get_singleton()->is_stdout_verbose())
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OS::get_singleton()->print("Successfully loaded AOT shared library: '%s'\n", so_path.utf8().get_data());
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return handle;
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}
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return NULL;
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}
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void *gd_mono_android_dlsym(void *p_handle, const char *p_name, char **r_err, void *p_user_data) {
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void *sym_addr = dlsym(p_handle, p_name);
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if (sym_addr)
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return sym_addr;
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if (r_err)
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*r_err = str_format_new("%s\n", dlerror());
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return NULL;
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}
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void register_android_dl_fallback() {
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mono_dl_fallback_register(gd_mono_android_dlopen, gd_mono_android_dlsym, NULL, NULL);
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}
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} // namespace GDMonoAndroid
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#endif
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